Scraper for unloading cars



(No Model.) G. T. DIXON.

SG'RAPEB. FOR UNLOADING CARS, &c.

No. 548,527. Patented Oct. 22, 1895.

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AN DREW LIP-RAMA. mum-Woman "(ml 0.6

UNITED STATES PATENT rrrcs.

GEORGE DIXON, OF SOUTH BUTTE, ASSIGNOR TO HIMSELF, AND ALEX- ANDER JAMIESON, OF BUTTE, MONTANA.

SCRAPER FOR UNLOADING CARS, 81.0.

SPECIFICATION forming part of Letters Patent No. 548,527, dated October 22, 1895.

Application filed May 16, 1895- Serial No. 549,546. (No model.)

To aZZ whom it may concern.-

Be it known that I, GEORGE T. DIXON, of South Butte, in the county of Silver Bow and State of Montana, have invented a new and Improved Unloading-Scraper, of which the following is a full, clear, and exact descrip tion.

My invention relates to an improvement in devices for handling and loading or unloading coal, grain, and like material, or for removing or excavating earth or other material.

The object of this invention is to provide a scraper which will be exceedingly simple, durable, and economic in its construction and which will act automatically to place itself in position to receive a load and to discharge a load, and to so construct the scraper that it will be adjustable to any pitch, thereby insuring the filling of the scraper.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan view ofacar, the scraper being shown in position to unload the same, and the supports forthe power-applying mechanism being shown in horizontal section. Fig. 2 is a side elevation of the power -supplying mechanism, the car being shownin longitudinal section; and Fig. 3 is a detail showing a bandshifter employed.

In carrying out the invention standards 10 are erected adjacent to the track, and in the said standards a shaft 11 is journaled, extending beyond one side of the frame formed by said standards and a connecting cross-bar. A drum 12 is firmly secured to the projecting end of the shaft 11, and two pulleys 13 and let are loosely mounted upon this shaft, while between them a pulley 15 is secured on the shaft. A power-shaft 16 is journaled in the lower portion of the aforesaid frame, capable of being rotated through the medium of a crank 17 or its equivalent. Uprights 18 and 19 are placed near the track, one at each side of the frame, the upright 18 being provided with a horizontal arm 18, pivoted thereto and adapted to extend over the track, while the upright 19 is provided with asimilar arm 19*. Each of these arms is fitted with a sleeve 20, mounted to slide loosely thereon, and one sleeve carries two pulleys 21 and 22, and the other sleeve corresponding pulleys 21 and 22. A shiftinglever 23 is journaled upon a bracket 23 from the main frame and connected to two shifting-arms 25 and 26, one at each side of the pulley 15, secured on the shaft 11. The arms 25 26 are secured to a bar 25 having sliding connection with the standards 10, and to which the lever 23 is pivoted.

A straight belt-27 is carried downward from the pulley 13 to the driving-shaft 16, while a crossed belt 28 is carried downward from the pulley 14 to the said driving-shaft, as is best shown in Fig. 2, and the shifting-lever 23 is capable of taking either of these belts to an engagement with the pulley 15, and by reason of the crossing of one of the belts it is evident that the shaft may be driven in two directions, according to the belt having influence upon it.

A cable 29 is secured to what may be termed the front end of the shifting-lever 23, being passed over the pulley 22, thence over the track to the pulley 22 on the upright 19, and from this pulley the cable 29 is carried to an engagement with the opposite side of the shifting-lever 23.

Two blocks or like checks 30 and 31 are placed on the straight stretch of the cable 29, or that portion of the cable over the track, and these blocks are at predetermined distances apart, as shown in Fig. 1. A cable 32 is wound around the drum 12, andis passed from thence over a pulley 31, connected with the arm of the upright 18, and from this pulleythe cable 32 is carried around the pulley21 on the arm of the upright 19, and is fastened to a bail a at one end of the scraper A, while a second cable 32 is secured likewise to the drum 12, and is wound thereonin an opposite direction. This latter cable passes through the pulley 21 on the upright 18, and is then fastened to a bail a at the opposite end of the scraper A, as is also best shown in Fig. 1.

The scraper A is made of metal and is substantially U-shaped in cross-section, having a dome-shaped or a fiat top a,the body of the scraper being open at both of its ends. A gate a is pivoted at its upper end in the up per portion of the rear extremity a of the body of the scraper, the said gate being limited in its rearward movement by a pin a or its equivalent, and at one end of this scraper the bail a heretofore alluded to, is'placed, and at the opposite end of the second-bail a and upon the top of the scraper an eye a is placed, through which the straight stretch of the shifting-cable 29 passes, the scraper therefore having guided movement on this cable, and as the scraper is carried in direction of either one or the other of the uprights 18 or 19 it will engage with one or'the other of the blocks 80 or 31, secured on the said shiftingcable,moving the shifting-lever andbringing one or the other of the belts 27 or 28 upon the driving-pulley on the drum-shaft 11, car rying the scraper in direction of one or the other end of the car or other receptacle to be unloaded, thescraper-automatically producing the said shifting action. j

The car B to be unloaded is carried beneath the scraper orscoop and adjacent to a chute 34, which is provided with a grating 35 at the top'for the scraper to travel over. One end of the car is then removed and the powerishaft 16 is set in motion, whereupon the scraper will be alternately carried rearward over the material, filling itself at its next for ward movement and drawing the material over the grating 35, dumping it into the chute 34, from whence it may be conveyed by an elevator or the equivalent thereof or to any desired point. i The stop a regulatesthe rearf ward movement of the gate a It will be understood that'the scraper may be made with an open top, if desired, the closed top being best for finematerial and the open top for such material as rock. g

Having thus'described my invention, I claim as new and desire to secure by Letters Patent 1. A scraper for unloading material-from a car, the same consisting of a body portion open at the ends, a gate pivoted within the rear end of the body portion, a stop for'lim iting the outward movement of the gate, a

bail at each end of the scraper, cables attached to said bails for drawing the scraper lengthwise over a car mechanism for operating the cables and a shifting mechanism operated by the scraper, substantially as shown and described. 7

2. In an unloading device,-the combination, with a driving pulley, idlers located at each side of the driving pulley, a drive shaft, a straight belt and a crossed belt passed from the drive shaft to the idlers, the said belts being adapted to travel alternately upon the driving pulley, and a shifting lever operating the said belts, of a cable attached to the shifting lever and passed through guides substan tially oppositely disposed, the said shifting cable being provided with stops, a scraper substantially inverted U shape in cross section, having a bailateach end and a pivoted gate at its rear end, together with astop limiting the movement of the gate in one direction, cables oppositely wound on the shaft to which the driving pulley is secured, the said cables being attached one to each bail, being likewise passed over guides, and a guide located on the scraper through which the shifting cable passes, the said guide being located upon that. portion of the shifting cable betweenthe stops, as and for-the purpose specified.

3. In an'unloading device, a power shaft,a driving shaft driven therefrom, two belts, a straight and a crossed belt, connecting the powershaft withthe driven'shaft through the medium of fast and loose pulleys, a drum carried by the said driven shaft, a scraper, a

- shifting lever operating the said belts, a shifting cable connected with the shifting lever and provided with stops, cables secured to the drum, being wound thereon in opposite direc 'tions and attached to opposite ends of the scraper, and a guide carried by the scraper,

through which the shifting cable passes, as and for the purpose specified.

GEORGE T. DIXON.

Witnesses:

SETH B. SMITH, ALEXANDER J AMIESON. 

